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2,3,8,10-Tetramethoxy-[2]benzopyrano[4,3-b][1]benzopyran-7(5H)-one is a complex organic compound with the molecular formula C21H18O7. It belongs to the class of benzopyran derivatives, which are heterocyclic compounds containing a benzene ring fused to a pyran ring. This specific compound is characterized by the presence of four methoxy groups (-OCH3) attached to the benzopyran core, with the methoxy groups located at the 2, 3, 8, and 10 positions. The compound also features a carbonyl group (C=O) at the 7 position, which contributes to its structure as a 5H-one, indicating a hydrogen atom attached to the carbonyl group. This chemical structure is significant in the field of organic chemistry and may have potential applications in various industries, such as pharmaceuticals or materials science, due to its unique properties and reactivity.

2746-94-3

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2746-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2746-94-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,7,4 and 6 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2746-94:
(6*2)+(5*7)+(4*4)+(3*6)+(2*9)+(1*4)=103
103 % 10 = 3
So 2746-94-3 is a valid CAS Registry Number.

2746-94-3Relevant academic research and scientific papers

Metabolites from the Purple Heartwood of Mimosoideae. Part 2. Acacia carnei Maiden: Isolation, Synthesis, and Reactions of Crombeone

Brandt, Edward V.,Ferreira, Daneel,Roux, David G.

, p. 514 - 521 (2007/10/02)

The range of natural peltogynoid-type chalcone, flavonol, and dihydroflavonol analogues is extended by the recognition of carnein, β-photomethylquercetin, and (+)-2,3-trans-crombeone in the purple heartwood of Acacia carnei.The first synthesis of a 2,3-trans-peltogynone, crombeone tetramethyl ether, is effected and its catalytic reduction leads to a 2,3-trans-3,4-cis-peltogynol analogue.Crombeone itself is subject to a variety of methylene insertion reactions with diazomethane.

Metabolites from the Purple Heartwood of Mimosoideae. Part 3. Acacia crombei C.T. White: Structure and Partial Synthesis of Crombenin, A Natural Spiropeltogynoid

Brandt, Edward W.,Ferreira, Daneel,Roux, David G.

, p. 1879 - 1883 (2007/10/02)

Crombenin, 4,4',6,6',7-pentahydroxyisochroman-3'-spirobenzofuran-3(2H)-one, the first spiropeltogynoid, is related to the concominant crombeone (8-hydroxypeltogynone) from which it is derived via oxidation with alkaline hydrogen peroxide of the chalcone i

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